Word: bottom
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Dates: during 1960-1969
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...Evans, at least, the answer was obvious. When water was pumped deep into the Pre-Cambrian rock around the bottom of the well, he said, it lubricated the surfaces of vertical fractures, allowing the rock faces to slide against each other, causing recurring tremors. The theory sounded good enough for Colorado Congressman Roy McVicker, who called for a full-scale scientific investigation. Beginning in December, the U.S. Geological Survey and four Colorado colleges and universities set up seismographs on the arsenal grounds; they recorded quakes while Army technicians systematically reduced both the volume and pressure of waste water entering...
...Both the frequency and intensity of quakes diminished dramatically as less water was pumped down the well. Furthermore, the study established that the epicenters of the quakes were located within only a mile of the well and the quake centers themselves were at 12,000 ft.-close to the bottom of the suspect well, where an earth fault was also found. The Colorado earthquakes and the Army's disposal of waste water, said the Geological Survey, "probably are related...
...face was shielded by a mask; he wore a quarter-inch-thick black neoprene wet suit and two air tanks. Face down, he moved along, propelled by his boxer's legs. On the bottom were remains of three ships which sank there sometime during the fourth century. The ships' cargo, thirty stone coffins, was scattered around the site...
There was some ship's planking on the bottom, and Bullitt must have smiled as he scudded down to pick up a piece. He has a contagious smile that starts at his lips and then conquers his entire face, smoothing lines and erasing half of his 44 years. It is a solid smile, like the solid stuff he likes. Bullitt always wants to get the measure of things, to put a ruler to them and look at them under a magnifying glass. Perhaps this is why he doesn't like abstract art, where such measurements don't have meaning, while...
There was something of that starkness in the two-foot-long pieces of lumber on the ocean bottom. The planking had been preserved under the mud--toredo worms eat any un-protected organic material--and uncovered with an air lift, a sort of under-water vacuum cleaner. The planks were well turned-out, and some were joined in a V with wood dowels...